246 REVISION OF THE THYNNIDjE OF AUSTRALIA, II., 



oblique striae. Black; spines of tarsi and apex of pygidium fusco- 

 ferruginous. Length 10-12 mm. 



Hob.— Woodford, Blue Mts., N.S.W. (G. A. Waterhouse; <j£ 

 in cop.). 



206. T. ultimus, n.sp. 



(J. Clypeus truncate anteriorly, depressed and membranaceous 

 on apical margin, raised portion before apex emarginate in middle, 

 closely punctured. Head very finely rugulose, pubescent, pro- 

 minence between antennas rounded at apex, with a faint longi- 

 tudinal carina from below anterior ocellus. Thorax finely punc- 

 tured, pronotum short, depressed anteriorly; scutellum prominent, 

 subtriangular, sides almost vertical. Median segment depressed, 

 very finely rugulose and covered with short whitish pubescence. 

 Abdomen fusiform, rather narrow, segments very closely and 

 shallowly punctured, segments 2-5 with an impressed transverse 

 line near base, faint on fourth and fifth segments, and a raised 

 lateral mark near apical margins of second and third segments. 

 First segment beneath carinate from base with a small tubercle 

 at apex and a small triangular truncation below tubercle. Seg- 

 ments beneath slightly depressed at apex, and with a rounded, 

 faintly raised mark on each side near apical margin. Hypopygium 

 elongate, with a small spine on each side near base, thence gradu- 

 ally narrowed to apical spine. Black; clypeus and mandibles 

 except at apex yellow; apex of interantennal prominence, scape 

 and first joint of antennae beneath and legs dull ferruginous; 

 coxae black except at apex; posterior margin of pronotum, 

 abdominal segments at apex above and beneath, and at sides, and 

 the whole of the apical segment obscure ferruginous. Wings 

 hyaline, fuscous in the radial cell, nervures fusco-ferruginous fit 

 base, black at apex. Length 14 mm. 



$. Head smooth and shining, slightly narrowed anteriorly, 

 front much elevated in centre, obliquely depressed towards pos- 

 terior and lateral margins, sides slightly concave above base of 

 antennae. A fine longitudinal sulcus between antennae. Thorax 

 punctured finely, short, pronotum nearly twice as broad as long, 

 mesonotum not very narrow; median segment short, coarsely 



